//global variables that can be used by ALL the function son this page.
var inputs;
var imgFalse = 'Common/Images/Publicimages/checkbox.gif';
var imgTrue = 'Common/Images/Publicimages/checkboxOv.gif';

//this function runs when the page is loaded, put all your other onload stuff in here too.
function init() {
	replaceChecks();
}

function replaceChecks() {
	
	//get all the input fields on the page
	inputs = document.getElementsByTagName('input');

	//cycle trough the input fields
	for(var i=0; i < inputs.length; i++) {

		//check if the input is a checkbox
		if(inputs[i].getAttribute('type') == 'checkbox') {
			
			//create a new image
			var img = document.createElement('img');
			
			//check if the checkbox is checked
			if(inputs[i].checked) {
				img.src = imgTrue;
				if(inputs[i].name=='tshirt') {
					document.getElementById('size_div').style.display="";
				}
				if(inputs[i].id=='user_status1') {
					document.getElementById('user_status1_date').style.display="";
				}
				if(inputs[i].id=='user_status2') {
					document.getElementById('user_status2_date').style.display="";
				}
			} else {
				if(inputs[i].name=='tshirt') {
					document.getElementById('size_div').style.display="none";
				}
				if(inputs[i].id=='user_status1') {
					document.getElementById('user_status1_date').style.display="none";
				}
				if(inputs[i].id=='user_status2') {
					document.getElementById('user_status2_date').style.display="none";
				}				
				img.src = imgFalse;
			}

			//set image ID and onclick action
			img.id = 'checkImage'+i;
			//set image 
			img.onclick = new Function('checkChange('+i+')');
			//place image in front of the checkbox
			inputs[i].parentNode.insertBefore(img, inputs[i]);
			
			//hide the checkbox
			inputs[i].style.display='none';
		}
	}
}

//change the checkbox status and the replacement image
function checkChange(i) {

	
	if(inputs[i].name=='sizeS') {
		var M = i+1;
		var L = i+2;
		inputs[M].checked = '';
		inputs[L].checked = '';
		document.getElementById('checkImage'+M).src=imgFalse;
		document.getElementById('checkImage'+L).src=imgFalse;
	}
	if(inputs[i].name=='sizeM') {
		var S = i-1;
		var L = i+1;
		inputs[S].checked = '';
		inputs[L].checked = '';
		document.getElementById('checkImage'+S).src=imgFalse;
		document.getElementById('checkImage'+L).src=imgFalse;
	}
	if(inputs[i].name=='sizeL') {
		var S = i-2;
		var M = i-1;
		inputs[S].checked = '';
		inputs[M].checked = '';
		document.getElementById('checkImage'+S).src=imgFalse;
		document.getElementById('checkImage'+M).src=imgFalse;
	}
	if(inputs[i].name=='yesPublish') {
		var NP = i+1;
		inputs[NP].checked = '';
		document.getElementById('checkImage'+NP).src=imgFalse;
	}
	if(inputs[i].name=='noPublish') {
		var YP = i-1;
		inputs[YP].checked = '';
		document.getElementById('checkImage'+YP).src=imgFalse;
	}
	
	if(inputs[i].id=='user_status1') {//uncheck Mum and other when pregnant is clicked
		var M = i+1;
		var O = i+2;
		inputs[M].checked = '';
		inputs[O].checked = '';
		document.getElementById('checkImage'+M).src=imgFalse;
		document.getElementById('checkImage'+O).src=imgFalse;
	}
	if(inputs[i].id=='user_status2') {//uncheck pregnant and other when Mum is clicked
		var P = i-1;
		var O = i+1;
		inputs[P].checked = '';
		inputs[O].checked = '';
		document.getElementById('checkImage'+P).src=imgFalse;
		document.getElementById('checkImage'+O).src=imgFalse;
	}
	if(inputs[i].id=='user_status3') {//uncheck pregnant and Mum when Other is clicked
		var P = i-2;
		var M = i-1;
		inputs[P].checked = '';
		inputs[M].checked = '';
		document.getElementById('checkImage'+P).src=imgFalse;
		document.getElementById('checkImage'+M).src=imgFalse;
	}
	
	if(inputs[i].checked) {
		inputs[i].checked = '';
		if(inputs[i].name=='tshirt') {
			var S = i+1;
			var M = i+2;
			var L = i+3;
			inputs[S].checked = '';
			inputs[M].checked = '';
			inputs[L].checked = '';
			document.getElementById('checkImage'+S).src=imgFalse;
			document.getElementById('checkImage'+M).src=imgFalse;
			document.getElementById('checkImage'+L).src=imgFalse;
			document.getElementById('size_div').style.display="none";
		}
		if(inputs[i].id=='user_status1') {
			document.getElementById('pregant_date').selectedIndex = '0';
			document.getElementById('pregant_month').selectedIndex = '0';
			document.getElementById('pregant_year').selectedIndex = '0';

			document.getElementById('mum_date').selectedIndex = '0';
			document.getElementById('mum_month').selectedIndex = '0';
			document.getElementById('mum_year').selectedIndex = '0';

			document.getElementById('user_status2_date').style.display="none";
			document.getElementById('user_status1_date').style.display="none";
		}
		if(inputs[i].id=='user_status2') {
			document.getElementById('pregant_date').selectedIndex = '0';
			document.getElementById('pregant_month').selectedIndex = '0';
			document.getElementById('pregant_year').selectedIndex = '0';

			document.getElementById('mum_date').selectedIndex = '0';
			document.getElementById('mum_month').selectedIndex = '0';
			document.getElementById('mum_year').selectedIndex = '0';

			document.getElementById('user_status1_date').style.display="none";
			document.getElementById('user_status2_date').style.display="none";
		}
		if(inputs[i].id=='user_status3') {
			document.getElementById('pregant_date').selectedIndex = '0';
			document.getElementById('pregant_month').selectedIndex = '0';
			document.getElementById('pregant_year').selectedIndex = '0';

			document.getElementById('mum_date').selectedIndex = '0';
			document.getElementById('mum_month').selectedIndex = '0';
			document.getElementById('mum_year').selectedIndex = '0';

			document.getElementById('user_status1_date').style.display="none";
			document.getElementById('user_status2_date').style.display="none";
		}
		document.getElementById('checkImage'+i).src=imgFalse;
	} else {
		inputs[i].checked = 'checked';
		if(inputs[i].name=='tshirt') {
			document.getElementById('size_div').style.display="";
		}
		if(inputs[i].id=='user_status1') {
			document.getElementById('user_status2_date').style.display="none";
			document.getElementById('user_status1_date').style.display="";

			document.getElementById('pregant_date').selectedIndex = '0';
			document.getElementById('pregant_month').selectedIndex = '0';
			document.getElementById('pregant_year').selectedIndex = '0';

			document.getElementById('mum_date').selectedIndex = '0';
			document.getElementById('mum_month').selectedIndex = '0';
			document.getElementById('mum_year').selectedIndex = '0';
		}
		if(inputs[i].id=='user_status2') {
			document.getElementById('user_status1_date').style.display="none";
			document.getElementById('user_status2_date').style.display="";

			document.getElementById('pregant_date').selectedIndex = '0';
			document.getElementById('pregant_month').selectedIndex = '0';
			document.getElementById('pregant_year').selectedIndex = '0';

			document.getElementById('mum_date').selectedIndex = '0';
			document.getElementById('mum_month').selectedIndex = '0';
			document.getElementById('mum_year').selectedIndex = '0';
		}
		if(inputs[i].id=='user_status3') {
			document.getElementById('user_status1_date').style.display="none";
			document.getElementById('user_status2_date').style.display="none";

			document.getElementById('pregant_date').selectedIndex = '0';
			document.getElementById('pregant_month').selectedIndex = '0';
			document.getElementById('pregant_year').selectedIndex = '0';

			document.getElementById('mum_date').selectedIndex = '0';
			document.getElementById('mum_month').selectedIndex = '0';
			document.getElementById('mum_year').selectedIndex = '0';
		}
		document.getElementById('checkImage'+i).src=imgTrue;
	}
}

//window.onload = init;